News HDMI 2.2 is set to debut at CES 2025 — the new standard brings higher resolutions, refresh rates, and bandwidth

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FYI, HDCP (the "piracy fighting" thing) is supported by DisplayPort as an optional feature since DisplayPort 1.1 (released back in 2007), and most DisplayPort ports in TVs and monitors implement it, precisely because without it DRMed content will be downscaled to 480p by the sourced device.

Also, DisplayPort doesn't support ARC/eARC, which is the reason DisplayPort is pretty much non-existent in TVs. So, HDMI is better in at least that regard.
I can't see how earc is so important
 
I can't see how earc is so important
eARC allows passing lossless Atmos to an Atmos receiver/soundbar. ARC can only pass lossy Atmos (aka Dolby Digital Atmos) since it doesn't have the bitrate for passing lossless Atmos. The problem isn't as much the "lossy" part (lossy sound is fine), but the fact some source devices cannot do the conversion from lossless Atmos to lossy Atmos before sending the Atmos to your non-eARC TV, so they send plain 5.1 or even stereo instead.

This is mainly an issue for Blu-ray players (since Blu-ray discs have lossless Atmos), most streaming services stream lossy Atmos anyway.

If you are stuck with a non-eARC TV and have a Blu-ray player, you might want to buy an Atmos receiver with passthrough capabilities (and not a soundbar with a solitary HDMI input).

PS: And before anyone asks, no Atmos receivers capable of passing through DisplayPort exist
 
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